INDUSTRIAL JACKETING

1 1. This guideline covers the installation of Johns ManvillePabco-Childers brand aluminum and stainless - steel JACKETING products on insulated pipe including elbows, valves, and other Product data sheets and other JM literature are referencedthroughout this guideline. Visit for the latest version of these The information contained in this guideline and referencedJM documents are current as of January 2020. This guideline is subject to revision without notice. Visit or contact the Johns Manville Customer Information Group at 1-800-231-1024 or your local JM representative for the most recent version of this guideline or other JM referenced Due to the variations in service conditions and use, this guideline may not be pertinent for every application. A design or specifying engineer can create specifications tailored to particular applications or owner s needs.

2 Such a design or specification engineering service may be more familiar with local conditions, budgets, environment, and desired service life of the system allowing them to generate a more precise It is the intent of this document to provide guidelines for the installation of Johns Manville Pabco-Childers brand aluminum and stainless - steel insulation JACKETING products. This guideline may not be suitable and shall not be used for the purpose of installing another insulation manufacturer s products. While supplemental insulation system products may be referenced in this guideline, JM recommends consulting the manufacturers of such products for proper installation and This guideline is offered as a guide for the purpose described herein. No warranty of procedures, either expressed or implied is intended. All other express or implied warranties of merchantability or fitness for a particular purpose are All surfaces shall be free of foreign substances prior to the application of insulation All JACKETING material shall be delivered to the project site in original unbroken factory packaging labeled with product designation and metal Metal JACKETING shall be stored in a dry area before use.

3 Water staining may occur due to improper storage before All testing of piping systems shall be completed prior to the installation of the insulation JACKETING ALUMINUM & stainless steel METAL JACKETING /CLADDING3. MATERIALS OF Metal JACKETING Materials for Pipe & Fittings - Insulation JACKETING shall be aluminum and/or stainless - steel roll, or cut & roll JACKETING , elbows, and accessories manufactured by Johns Aluminum or stainless - steel protective JACKETING shall not be considered a vapor A pipe coating system may be recommended to minimize the likelihood of corrosion of the underlying pipe. Refer to Appendix A for conditions where pipe coating systems are Where required, safety edges or safety hems may be used on metal JACKETING . A safety edge consists of a de-burred or rounded edge. A safety hem shall be folded such that the original edge is on the underside of the JACKETING and shall be a to in width.

4 A safety hem shall not be used on 3/16 or deep corrugated Aluminum Aluminum JACKETING shall comply with the requirements of ASTM C1729 Standard Specification for Aluminum JACKETING for Insulation and shall be classified per ASTM C1729 as Standard Roll or Sheet Aluminum Properties: Bare surface, 3105/3003 alloy, H14 temper, 3 mil polyfilm moisture Classification: Type I, Grade 1, Class A, Standard Roll or Sheet Aluminum JACKETING for Extra Corrosive Properties: Painted surface, 3105/3003 alloy, H14 temper, 3 mil polyfilm moisture Classification: Type II, Grade 1, Class A, Heavy Duty Sheet or Roll Aluminum JACKETING for High Abuse Properties: Bare surface, 3105/3003 alloy, H12 temper, 3 mil polyfilm moisture Classification: Type I, Grade 2, Class A, Ell-Jacs Plus Two-Piece Aluminum Properties: Clear painted outer surface, 1100 alloy, 0 temper, polyfilm moisture Classification: Type III, Grade 3, Class A, Deep corrugated Aluminum Sheet Properties: Bare or painted surface, 3105/3003 alloy, H14 or H12 temper, 3 mil polyfilm moisture Classification: Type I or II, Grade 1 or 2, Class A, Box Rib Aluminum Sheet Properties.

5 Bare surface, 3004 or Alclad 3004 alloy, no moisture barrierINSTALLATION GUIDEINDUSTRIAL JACKETINGMETAL JACKETING ALUMINUM & stainless steel METAL JACKETING /CLADDINGINDUSTRIAL Refer to Table 1 in Appendix B for recommended aluminum JACKETING thickness based on outer diameter of insulation and compressive strength of the Aluminum Elbows/Fittings and Irregular Surfaces Aluminum JACKETING for 90 and 45 pipe elbows/ fittings shall be two-piece pressed elbow covers from Johns Manville where available in required sizes. Refer to Table 3, Table 4, Table 5, and Table 6 in Appendix B or the Johns Manville Fitting Selection Guide for sizing information. For some larger pipe sizes where two-piece pressed elbow covers are not available, aluminum JACKETING for 90 elbows/fittings shall be four-piece pressed elbow covers from Johns Manville (available for limited pipe sizes and insulation thicknesses between 10 and 18 NPS).

6 Consult Table 3 in Appendix B or the Johns Manville Fitting Selection Guide for sizing information. For larger size elbows/fittings where two- or four- piece pressed elbow covers are unavailable, aluminum elbows shall be gores fabricated to fit closely around insulation. Aluminum JACKETING for tees, valves, flanges, caps, etc. shall be factory or field-fabricated to fit closely around insulation. Aluminum pressed elbow covers shall have a gold colored acrylic or polyester painted moisture barrier on the interior surface to help prevent corrosion of the interior surface of the JACKETING . Aluminum pressed elbow covers shall have a factory applied, baked on finish of highly durable hard film clear acrylic or polyester paint on the exterior surface to help prevent external corrosion and to raise the stainless steel JACKETING stainless steel JACKETING shall comply with the requirements of ASTM C1767 Standard Specification for stainless steel JACKETING for Insulation and shall be classified per ASTM C1767 as follows: Standard Roll or Sheet stainless steel JACKETING Properties: Bare surface, T304/T304L alloy, annealed temper, 3 mil polyfilm moisture barrier Classification.

7 Type I, Grade 1, Class A, thick Standard Roll or Sheet stainless steel JACKETING for Extra Corrosive Environments Properties: Bare surface, T316/T316L alloy, annealed temper, 3 mil polyfilm moisture barrier Classification: Type I, Grade 2, Class A, thick Two-Piece stainless steel Elbows Properties: Bare surface, T316/T316L alloy, annealed temper Classification: Type I, Grade 2, Class E, thick Deep corrugated stainless - steel Sheet JACKETING Properties: Bare surface, T304/T304L or T316/ T316L alloy, annealed temper, 3 mil polyfilm moisture barrier Classification: Type I, Grade 1 or 2, Class A, thick The stainless - steel JACKETING alloys shall comply with the requirements of ASTM A240.

8 stainless steel roll and cut & roll JACKETING shall have a 3-mil thick polyfilm moisture barrier factory heat laminated to the inside surface to help prevent corrosion of the interior surface of the JACKETING . stainless steel JACKETING shall be used when its superior flame or corrosion resistance is required. Consult Johns Manville for stainless steel alloy recommendations for corrosive environments. Refer to Table 2 in Appendix B for recommended stainless steel JACKETING thickness based on outer diameter of insulation and compressive strength of the insulation. stainless steel Elbows/Fittings and Irregular Surfaces stainless steel JACKETING for 90 and 45 pipe elbows/fittings shall be two-piece pressed elbows from Johns Manville where available in required sizes. Refer to Table 3, Table 4, and Table 5 in Appendix B or the Johns Manville Fitting Selection Guide for sizing information.

9 For larger size elbows/fittings where pressed elbow covers are unavailable, stainless steel elbows shall be gores fabricated to fit closely around insulation. stainless steel JACKETING for tees, valves, flanges, caps, etc. shall be factory or field-fabricated to fit closely around Banding For aluminum JACKETING and aluminum elbow covers, banding can be aluminum or stainless steel . Due to the tensile strength characteristics, stainless steel banding shall be used in most applications. Aluminum Banding Aluminum banding shall only be used where all of the following apply: Aluminum JACKETING and fitting covers are used. The thickness of the aluminum JACKETING does not exceed that of the banding. The banding will not be subjected to excessive forces due to wind load, expansion/contraction of the insulation system, or other factors.

10 The environment is not particularly corrosive. The insulation outer diameter is 8 . A non-rigid insulation material is used. Where the above criteria are met, aluminum banding for roll, cut & roll, and elbow applications shall be thick by or wide and composed of alloys 3105 or 3003. stainless steel Banding For applications that do not meet all of the above criteria in section , including all applications with stainless steel JACKETING and stainless - steel elbow covers, stainless steel banding shall be used. stainless steel banding for roll, cut & roll, and elbow applications shall be " thick stainless steel composed of alloys T304 or T316 with annealed temper. For all outer insulation diameters (OD) less than 16 , " wide or wide stainless - steel banding shall be used. For 16 OD and above, wide stainless - steel banding shall be used.